calvados-fonctions/lib/main.js

Librairie de fonctions réutilisables

"use strict";

var getTextualDay = function(day) {
    var days = ["dimanche", "lundi", "mardi", "mercredi", "jeudi", "vendredi", "samedi"];
    return days[day];
};

var getTextualMonth = function(month) {
    var months = ["janvier", "fevrier", "mars", "avril", "mai", "juin", "juillet", "aout", "septembre", "octobre", "novembre", "decembre"];
    return months[month];
};

var groupBy = function(xs,key) {
    return xs.reduce(function(rv, x) {
        (rv[x[key]] = rv[x[key]] || []).push(x);
        return rv;
    }, {});
};

var dateFr = function (date, format) {
    var dateArray = new Date(date).toISOString().slice(0,10).split("-");
    var annee = dateArray[0];
    var mois = dateArray[1];
    var jour = dateArray[2];
    switch(format) {
        case "JJ-MM-AAAA":
            return jour+"-"+mois+"-"+annee;
        case "JJ/MM/AAAA":
            return jour+"/"+mois+"/"+annee;
        case "chaine":
            return jour + " " + getTextualMonth(mois-1) + " " + annee;
        default:
            return jour+"/"+mois+"/"+annee;
    }
};

var mod = function(s,x) {
    var checksum = s.slice(0, 2), fragment;
    for (var offset = 2; offset < s.length; offset += 7) {
        fragment = String(checksum) + s.substring(offset, offset + 7);
        checksum = parseInt(fragment, 10) % x;
    }
    return checksum;
};

var checkIBAN = function(iban) {
    var s = "";
    var b = iban.toUpperCase();
    var ib = b.substr(4) + b.substr(0,4);
    for (var i = 0; i < ib.length; i++) {
        if(ib.charAt(i).length === 1 && ib.charAt(i).match(/[a-z]/i))
            s += ib.charCodeAt(i)-55;
        else
            s += ib.charAt(i);
    }
    return mod(s,97) === 1;
};

var fn = {
    getTextualDay: getTextualDay,
    getTextualMonth: getTextualMonth,
    groupBy: groupBy,
    dateFr: dateFr,
    mod: mod,
    checkIBAN: checkIBAN
};

module.exports = fn;